I grabbed a few very interesting Tourminalated Quartz tumbles for web buyers. Here is another one. Know that tourmaline in quartz is also called tourmalinated quartz and tourmalated quartz.
These tourmaline needles seem a very dark green and some seem black. They all have a good number of tourmaline needles.
These may or may not fit a hemp necklace depending on the basket size. They are certainly large enough to hold. It is certainly very interesting for a young collector to enjoy discussing how the crystals grew through each other.
And of course, tourmaline is wonderful for cleaning and protecting the energy of clairsentient people. When it is in quartz it ramps up the energy of the needles. It helps against psychic attack which is usually from a person under stress throwing their ill will in your direction. Read more on Healing Tabs.
Use this video to help you select your tourmalinated quartz tumble.